Home / 29,043.61-43,583.87-12,403.78

Finding the Fourth Proportional to 29,043.61, 43,583.87 and 12,403.78

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Solution

The fourth proportional to 29,043.61, 43,583.87 and 12,403.78 is: 18,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,043.61 : 43,583.87 = 12,403.78 : x
  2. Step 2: Convert to fraction form
    29,043.61/43,583.87 = 12,403.78/x
  3. Step 3: Cross multiply
    29,043.61x = 43,583.87 × 12,403.78
  4. Step 4: Simplify right side
    29,043.61x = 540,604,673.01
  5. Step 5: Solve for x
    x = 540,604,673.01/29,043.61
  6. Step 6: Final answer
    x = 18,613.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.